diff --git a/external/vulkancts/framework/vulkan/vkImageUtil.cpp b/external/vulkancts/framework/vulkan/vkImageUtil.cpp
index c2953bd851..c55a54a2e6 100644
--- a/external/vulkancts/framework/vulkan/vkImageUtil.cpp
+++ b/external/vulkancts/framework/vulkan/vkImageUtil.cpp
@@ -474,6 +474,25 @@ bool isPvrtcFormat (VkFormat format)
 	return false;
 }
 
+bool isPvrtc1Format (VkFormat format)
+{
+#ifndef CTS_USES_VULKANSC
+	switch (format)
+	{
+		case VK_FORMAT_PVRTC1_2BPP_UNORM_BLOCK_IMG:
+		case VK_FORMAT_PVRTC1_4BPP_UNORM_BLOCK_IMG:
+		case VK_FORMAT_PVRTC1_2BPP_SRGB_BLOCK_IMG:
+		case VK_FORMAT_PVRTC1_4BPP_SRGB_BLOCK_IMG:
+			return true;
+		default:
+			return false;
+	}
+#else
+	DE_UNREF(format);
+#endif
+	return false;
+}
+
 const std::map<VkFormat, std::string> spirvFormats = {
 	{ VK_FORMAT_R32G32B32A32_SFLOAT,		"Rgba32f"		},
 	{ VK_FORMAT_R32G32_SFLOAT,				"Rg32f"			},
diff --git a/external/vulkancts/framework/vulkan/vkImageUtil.hpp b/external/vulkancts/framework/vulkan/vkImageUtil.hpp
index 7ecb53dcd1..fe13d883ef 100644
--- a/external/vulkancts/framework/vulkan/vkImageUtil.hpp
+++ b/external/vulkancts/framework/vulkan/vkImageUtil.hpp
@@ -176,6 +176,7 @@ bool							isYCbCrFormat					(VkFormat						format);
 bool							isYCbCrExtensionFormat			(VkFormat						format);
 bool							isYCbCrConversionFormat			(VkFormat						format);
 bool							isPvrtcFormat					(VkFormat						format);
+bool							isPvrtc1Format					(VkFormat						format);
 PlanarFormatDescription			getPlanarFormatDescription		(VkFormat						format);
 int								getPlaneCount					(VkFormat						format);
 deUint32						getMipmapCount					(VkFormat						format,
diff --git a/external/vulkancts/modules/vulkan/api/vktApiMemoryRequirementInvarianceTests.cpp b/external/vulkancts/modules/vulkan/api/vktApiMemoryRequirementInvarianceTests.cpp
index 6e2723fe35..89f2cd7089 100644
--- a/external/vulkancts/modules/vulkan/api/vktApiMemoryRequirementInvarianceTests.cpp
+++ b/external/vulkancts/modules/vulkan/api/vktApiMemoryRequirementInvarianceTests.cpp
@@ -180,12 +180,21 @@ ImageAllocator::ImageAllocator (deRandom& random, deBool dedicated, std::vector<
 	else
 		m_colorFormat = (VkFormat)optimalformats[deRandom_getUint32(&random) % optimalformats.size()];
 
-	int	widthAlignment	= (isYCbCr420Format(m_colorFormat) || isYCbCr422Format(m_colorFormat)) ? 2 : 1;
-	int	heightAlignment	= isYCbCr420Format(m_colorFormat) ? 2 : 1;
+	if (isPvrtc1Format(m_colorFormat))
+	{
+		m_size = tcu::IVec2(pow(2, deRandom_getUint32(&random) % 4),
+							pow(2, deRandom_getUint32(&random) % 4));
+	}
+	else
+	{
+		int	widthAlignment	= (isYCbCr420Format(m_colorFormat) || isYCbCr422Format(m_colorFormat)) ? 2 : 1;
+		int	heightAlignment	= isYCbCr420Format(m_colorFormat) ? 2 : 1;
+
+		// Random small size for causing potential alignment issues
+		m_size			= tcu::IVec2((deRandom_getUint32(&random) % 16 + 3) & ~(widthAlignment - 1),
+									(deRandom_getUint32(&random) % 16 + 3) & ~(heightAlignment - 1));
+	}
 
-	// Random small size for causing potential alignment issues
-	m_size			= tcu::IVec2((deRandom_getUint32(&random) % 16 + 3) & ~(widthAlignment - 1),
-								 (deRandom_getUint32(&random) % 16 + 3) & ~(heightAlignment - 1));
 	// Pick random memory type from the supported set
 	m_memoryType	= memoryTypes[deRandom_getUint32(&random) % memoryTypes.size()];
 }
diff --git a/external/vulkancts/modules/vulkan/vktTestCase.cpp b/external/vulkancts/modules/vulkan/vktTestCase.cpp
index 4ab6fb5f90..eccc430351 100644
--- a/external/vulkancts/modules/vulkan/vktTestCase.cpp
+++ b/external/vulkancts/modules/vulkan/vktTestCase.cpp
@@ -103,6 +103,7 @@ vector<string> filterExtensions (const vector<VkExtensionProperties>& extensions
 		"VK_NV_representative_fragment_test",
 		"VK_NV_shader_atomic_float16_vector",
 		"VK_MVK_macos_surface",
+		"VK_IMG_format_pvrtc"
 	};
 
 	const char* exclusions[] =